20403223331 has 8 divisors (see below), whose sum is σ = 20782521024. Its totient is φ = 20025371520.

The previous prime is 20403223303. The next prime is 20403223339. The reversal of 20403223331 is 13332230402.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 20403223331 - 2¹⁴ = 20403206947 is a prime.

It is a super-2 number, since 2×20403223331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20403223297 and 20403223306.

It is not an unprimeable number, because it can be changed into a prime (20403223339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 332966 + ... + 389451.

It is an arithmetic number, because the mean of its divisors is an integer number (2597815128).

Almost surely, 2^20403223331 is an apocalyptic number.

20403223331 is a deficient number, since it is larger than the sum of its proper divisors (379297693).

20403223331 is an equidigital number, since it uses as much as digits as its factorization.

20403223331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 722941.

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 20403223331 its reverse (13332230402), we get a palindrome (33735453733).

The spelling of 20403223331 in words is "twenty billion, four hundred three million, two hundred twenty-three thousand, three hundred thirty-one".